Towel holder



FIG. 1 is a perspective view of a towel holder showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof.

The symbolic break lines in the figures convey that the appearance of any portion of the towel holder between the symbolic break lines forms no part of the claimed design. 

CLAIM The ornamental design for a towel holder, as shown and described. 